Blunt cannula



FIG. 1 is a perspective view of a blunt cannula showing my design;

FIG. 2 is a top plan view of the blunt cannula of FIG. 1, the bottom plan view being a mirror image thereof;

FIG. 3 is a front elevational view of the blunt cannula of FIG. 1, the rear elevational view being a mirror image thereof;

FIG. 4 is a left-side elevational view of the blunt cannula of FIG. 3; and,

FIG. 5 is a right-side elevational view of the blunt cannula of FIG. 3. 

The ornamental design of a blunt cannula, as shown and described. 